I actually hated playing any game on my phone until I got my iPhone because the graphics were always so horribly bad and really slow (i.e. your character would move to the left like a minute after you pressed the button for it) and just plain crappy... for $5.99+. I feel like they've come a long way now with the newer phones coming out and actually getting developers interested in making games that normal people would actually want to play.

What phones do you guys like to play games on and what are your favorite games?